As advertised, this apartment is pretty convenient to Nana station and the larger Soi 11 area of Sukhumvit. Reasonable walk to everything on a quiet street. The apartment itself was quite comfortable and has a good deal of space for a solo traveler or a couple. Thanks to dark curtains, the bedroom allows for sleeping in if you choose, on a typical Thai mattress (read: slightly hard). Washer worked well and the television had full cable, so could watch news or movies in multiple languages. The balcony doesn't really afford the opportunity to sit outside (small with no chairs). However, if you are inclined, the rooftop does have a couple of tables to sit out and enjoy a meal in the outdoors.
The gym was adequate, as had a couple of weight machines, free weights and a treadmill and bike. The pool was also okay with a small sunbathing deck.
Overall, if you are willing to walk a few hundred meters to access the entire world, this is an excellent option for a comfortable stay!